/* =============================================
   YASHVI BIRTHDAY — MERMAID EDITION 🧜‍♀️
   ============================================= */

:root {
  --font-display: 'Pacifico', cursive;
  --font-body:    'Nunito', sans-serif;
  --deep-ocean:   #041525;
  --ocean:        #0a1f3d;
  --ocean-mid:    #0d2f5c;
  --sea:          #0e4d7a;
  --aqua:         #26C0F5;
  --aqua-light:   #7DDFF8;
  --teal:         #4DD9AC;
  --teal-light:   #9EEBD4;
  --purple-sea:   #7B68EE;
  --coral-pink:   #FF8EC7;
  --coral-light:  #FFB3D8;
  --gold:         #FFD700;
  --gold-light:   #FFEEA0;
  --text-light:   #e8f4fd;
  --text-muted:   #9ac8e8;
  --radius-lg:    20px;
  --radius-xl:    28px;
  --radius-full:  9999px;
  --shadow-glow:  0 8px 32px rgba(38,192,245,0.25);
  --shadow-card:  0 8px 28px rgba(4,21,37,0.45);
  --shadow-photo: 0 16px 48px rgba(4,21,37,0.55);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;}
body{
  font-family:var(--font-body);
  background:var(--deep-ocean);
  color:var(--text-light);
  overflow-x:hidden;
  min-height:100dvh;
}
img{display:block;max-width:100%;height:auto;}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit;}

/* ===== Canvases ===== */
#confetti-canvas,#particle-canvas{
  position:fixed;top:0;left:0;width:100%;height:100%;
  pointer-events:none;
}
#particle-canvas{z-index:1;}
#confetti-canvas{z-index:9999;}

/* ===== Floating bubbles ===== */
.bubbles-bg{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2;overflow:hidden;}
.bubble{position:absolute;border-radius:50%;border:2px solid rgba(38,192,245,0.4);background:rgba(38,192,245,0.04);animation:bubbleRise linear infinite;}
.bu1{width:32px;height:32px;left:7%;animation-duration:11s;animation-delay:0s;}
.bu2{width:18px;height:18px;left:16%;animation-duration:15s;animation-delay:2.5s;}
.bu3{width:48px;height:48px;left:25%;animation-duration:9s;animation-delay:1s;}
.bu4{width:24px;height:24px;left:35%;animation-duration:13s;animation-delay:6s;}
.bu5{width:36px;height:36px;left:48%;animation-duration:10s;animation-delay:3.5s;}
.bu6{width:16px;height:16px;left:58%;animation-duration:17s;animation-delay:1.5s;}
.bu7{width:28px;height:28px;left:68%;animation-duration:12s;animation-delay:8s;}
.bu8{width:44px;height:44px;left:78%;animation-duration:14s;animation-delay:4s;}
.bu9{width:20px;height:20px;left:86%;animation-duration:16s;animation-delay:7s;}
.bu10{width:14px;height:14px;left:93%;animation-duration:8s;animation-delay:5s;}
.bu11{width:26px;height:26px;left:42%;animation-duration:19s;animation-delay:9s;}
.bu12{width:38px;height:38px;left:62%;animation-duration:11s;animation-delay:0.5s;}
.bu13{width:22px;height:22px;left:12%;animation-duration:14s;animation-delay:11s;}
.bu14{width:30px;height:30px;left:82%;animation-duration:18s;animation-delay:6.5s;}
@keyframes bubbleRise{
  0%{transform:translateY(110vh);opacity:0;}
  8%{opacity:0.9;}
  92%{opacity:0.7;}
  100%{transform:translateY(-10vh);opacity:0;}
}

/* ===== Sea floats ===== */
.sea-floats{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2;overflow:hidden;}
.sea-item{position:absolute;font-size:clamp(1rem,2vw,1.6rem);animation:seaDrift linear infinite;opacity:0.22;}
.sf1{left:4%;animation-duration:22s;animation-delay:0s;}
.sf2{left:13%;animation-duration:16s;animation-delay:4s;}
.sf3{left:23%;animation-duration:19s;animation-delay:8s;}
.sf4{left:44%;animation-duration:24s;animation-delay:2s;}
.sf5{left:55%;animation-duration:18s;animation-delay:6s;}
.sf6{left:67%;animation-duration:14s;animation-delay:1s;}
.sf7{left:77%;animation-duration:21s;animation-delay:10s;}
.sf8{left:88%;animation-duration:17s;animation-delay:5s;}
.sf9{left:33%;animation-duration:20s;animation-delay:12s;}
.sf10{left:95%;animation-duration:15s;animation-delay:3s;}
.sf11{left:8%;animation-duration:25s;animation-delay:7s;}
.sf12{left:73%;animation-duration:23s;animation-delay:14s;}
@keyframes seaDrift{
  0%{transform:translateY(105vh) rotate(0deg);opacity:0;}
  8%{opacity:0.28;}
  92%{opacity:0.28;}
  100%{transform:translateY(-10vh) rotate(25deg);opacity:0;}
}

/* ===== Jellyfish layer ===== */
.jellyfish-layer{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:2;overflow:hidden;}
.jelly{position:absolute;animation:jellyFloat ease-in-out infinite;opacity:0.35;}
.j1{font-size:clamp(1.8rem,3.5vw,2.8rem);left:3%;animation-duration:14s;animation-delay:0s;}
.j2{font-size:clamp(1.5rem,2.8vw,2.2rem);left:30%;animation-duration:18s;animation-delay:3s;}
.j3{font-size:clamp(2rem,4vw,3rem);left:55%;animation-duration:12s;animation-delay:7s;}
.j4{font-size:clamp(1.4rem,2.5vw,2rem);left:75%;animation-duration:16s;animation-delay:1.5s;}
.j5{font-size:clamp(1.8rem,3vw,2.5rem);left:88%;animation-duration:20s;animation-delay:5s;}
@keyframes jellyFloat{
  0%{transform:translateY(110vh) scale(1);opacity:0;}
  10%{opacity:0.4;}
  50%{transform:translateY(50vh) scale(1.05) translateX(15px);}
  80%{opacity:0.35;}
  100%{transform:translateY(-10vh) scale(0.9) translateX(-10px);opacity:0;}
}

/* ===== Invite banner ===== */
.invite-banner{
  position:relative;z-index:100;
  background:linear-gradient(90deg,var(--teal),var(--aqua),var(--purple-sea),var(--coral-pink),var(--teal));
  background-size:300% 100%;
  animation:bannerGrad 6s ease infinite;
  overflow:hidden;
  padding:0.55rem 0;
}
@keyframes bannerGrad{0%{background-position:0% 50%;}50%{background-position:100% 50%;}100%{background-position:0% 50%;}}
.invite-banner-inner{display:flex;width:100%;overflow:hidden;}
.invite-scroll{
  white-space:nowrap;
  font-size:clamp(0.78rem,1.6vw,0.95rem);
  font-weight:800;
  color:white;
  letter-spacing:0.04em;
  text-shadow:0 1px 4px rgba(0,0,0,0.3);
  animation:scrollTicker 28s linear infinite;
  display:inline-block;
  padding-left:100%;
}
@keyframes scrollTicker{0%{transform:translateX(0);}100%{transform:translateX(-50%);}}

/* ===== Sea creatures (JS-driven) ===== */
.swimming-fish{
  position:absolute;top:0;left:0;width:100%;height:100%;
  pointer-events:none;z-index:3;overflow:hidden;
}
.sea-creature{
  position:absolute;display:inline-block;
  will-change:transform;line-height:1;user-select:none;
}

/* ===== HERO ===== */
.hero{
  position:relative;
  min-height:100svh;
  background:linear-gradient(180deg,#0f4a8f 0%,#0a2e6a 20%,#07205a 45%,#051840 70%,#041525 100%);
  display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  padding:clamp(2rem,5vw,4rem) clamp(1rem,4vw,3rem) 100px;
  z-index:5;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 25%,rgba(38,192,245,0.15) 0%,transparent 55%),
    radial-gradient(ellipse at 80% 55%,rgba(123,104,238,0.12) 0%,transparent 55%),
    radial-gradient(ellipse at 50% 10%,rgba(77,217,172,0.1) 0%,transparent 55%);
  animation:underwaterShimmer 8s ease-in-out infinite alternate;
  pointer-events:none;
}
@keyframes underwaterShimmer{from{opacity:0.7;}to{opacity:1;}}

/* Light rays */
.light-rays{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;overflow:hidden;}
.ray{position:absolute;top:-5%;background:linear-gradient(180deg,rgba(120,220,255,0.18) 0%,transparent 80%);transform-origin:top center;animation:rayWave 6s ease-in-out infinite alternate;}
.r1{left:10%;width:80px;transform:rotate(-18deg);animation-delay:0s;}
.r2{left:25%;width:50px;transform:rotate(-8deg);animation-delay:1s;}
.r3{left:42%;width:100px;transform:rotate(-2deg);animation-delay:0.5s;}
.r4{left:60%;width:60px;transform:rotate(8deg);animation-delay:1.5s;}
.r5{left:74%;width:70px;transform:rotate(14deg);animation-delay:0.8s;}
.r6{left:88%;width:45px;transform:rotate(20deg);animation-delay:2s;}
@keyframes rayWave{from{opacity:0.4;skewX(-3deg);}to{opacity:0.9;skewX(3deg);}}

.hero-inner{
  position:relative;z-index:6;
  width:100%;max-width:1100px;
  display:flex;flex-direction:column;
  align-items:center;
  gap:0;
}

/* ===== Hero content: photo + text side by side ===== */
.hero-content{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:clamp(2rem,5vw,5rem);
  width:100%;
}

/* ===== Slideshow ===== */
.slideshow-wrap{flex-shrink:0;width:clamp(220px,34vw,300px);}
.slideshow-frame{position:relative;border-radius:var(--radius-xl);overflow:visible;}
.frame-glow{
  position:absolute;inset:-3px;
  border-radius:calc(var(--radius-xl) + 3px);
  background:linear-gradient(45deg,#4DD9AC,#26C0F5,#7B68EE,#FF8EC7,#FFD700,#4DD9AC);
  background-size:400% 400%;
  animation:rainbowBorder 3s ease infinite;
  z-index:0;
}
@keyframes rainbowBorder{0%{background-position:0% 50%;}50%{background-position:100% 50%;}100%{background-position:0% 50%;}}
.slides-container{
  position:relative;width:100%;aspect-ratio:3/4;
  border-radius:var(--radius-xl);overflow:hidden;
  border:4px solid transparent;
  box-shadow:var(--shadow-photo),0 0 50px rgba(38,192,245,0.35);
  z-index:1;
}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 0.9s ease,transform 0.9s ease;transform:scale(1.05);}
.slide.active{opacity:1;transform:scale(1);}
.slide img{width:100%;height:100%;object-fit:cover;object-position:top center;cursor:pointer;}

.frame-sparkles{position:absolute;inset:0;pointer-events:none;z-index:10;}
.fsp{position:absolute;color:var(--gold);font-size:1.2rem;animation:sparkleFlash 2s ease-in-out infinite;}
.fsp1{top:-14px;left:50%;transform:translateX(-50%);animation-delay:0s;}
.fsp2{top:50%;right:-14px;transform:translateY(-50%);animation-delay:0.4s;}
.fsp3{bottom:-14px;left:50%;transform:translateX(-50%);animation-delay:0.8s;}
.fsp4{top:50%;left:-14px;transform:translateY(-50%);animation-delay:1.2s;}
.fsp5{top:-14px;right:18%;animation-delay:1.6s;}
.fsp6{bottom:-14px;left:18%;animation-delay:0.3s;}
@keyframes sparkleFlash{0%,100%{opacity:0.3;transform:scale(0.8);}50%{opacity:1;transform:scale(1.3) rotate(20deg);}}

.slide-dots{
  position:absolute;bottom:-30px;left:50%;transform:translateX(-50%);
  display:flex;gap:8px;z-index:10;
}
.dot{width:10px;height:10px;border-radius:50%;background:rgba(38,192,245,0.3);border:2px solid var(--aqua);transition:all 0.3s;padding:0;}
.dot.active{background:var(--coral-pink);border-color:var(--coral-pink);transform:scale(1.4);}
.slide-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:38px;height:38px;border-radius:50%;
  background:rgba(4,21,37,0.82);border:2px solid var(--aqua);
  color:var(--aqua);font-size:1.4rem;
  display:flex;align-items:center;justify-content:center;
  z-index:12;transition:all 0.2s;padding:0;line-height:1;
}
.slide-arrow:hover{background:var(--aqua);color:var(--ocean);transform:translateY(-50%) scale(1.12);}
.slide-arrow.prev{left:6px;}
.slide-arrow.next{right:6px;}

/* ===== Hero text ===== */
.hero-text{
  text-align:center;
  max-width:420px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:0;
}
.mermaid-crown{margin:0 auto 0.4rem;animation:crownBob 3s ease-in-out infinite;}
@keyframes crownBob{0%,100%{transform:translateY(0) rotate(-3deg);}50%{transform:translateY(-7px) rotate(3deg);}}
.pre-heading{font-size:clamp(0.82rem,1.8vw,0.95rem);font-weight:700;color:var(--teal-light);margin-bottom:0.4rem;letter-spacing:0.04em;}
.hero-title{
  font-family:var(--font-display);
  font-size:clamp(2rem,5vw,4rem);
  line-height:1.2;
  color:#fff;
  margin-bottom:0.3rem;
  text-shadow:2px 2px 14px rgba(38,192,245,0.5),0 0 40px rgba(38,192,245,0.3);
  display:flex;flex-direction:column;align-items:center;gap:0;
}
.hb-line{
  display:block;
  white-space:nowrap;
  font-size:clamp(1.7rem,4.4vw,3.2rem);
  line-height:1.25;
}
.name-yashvi{
  display:block;
  color:var(--coral-pink);
  font-size:clamp(2.2rem,6vw,4.5rem);
  line-height:1.15;
  margin-top:0.12em;
  text-shadow:3px 3px 0 rgba(255,142,199,0.35),0 0 35px rgba(255,142,199,0.65);
  animation:nameShimmer 3.5s ease-in-out infinite;
  white-space:nowrap;
}
@keyframes nameShimmer{0%,100%{text-shadow:3px 3px 0 rgba(255,142,199,0.35),0 0 35px rgba(255,142,199,0.65);}50%{text-shadow:3px 3px 0 rgba(38,192,245,0.35),0 0 45px rgba(38,192,245,0.75);}}
.age-stars{
  font-size:clamp(0.72rem,1.6vw,0.88rem);
  font-weight:800;
  color:var(--gold);
  letter-spacing:0.08em;
  text-transform:uppercase;
  margin:0.55rem 0 0.5rem;
  opacity:0.9;
}
.hero-date{font-size:clamp(0.78rem,1.6vw,0.9rem);font-weight:700;color:var(--gold-light);margin-bottom:0.5rem;letter-spacing:0.04em;}
.hero-sub{font-size:clamp(0.82rem,1.8vw,0.95rem);font-weight:600;color:var(--text-muted);line-height:1.6;margin-bottom:1.2rem;}

/* ===== Make a Birthday Wish button — always visible ===== */
.confetti-btn{
  display:inline-block;
  font-family:var(--font-body);
  font-size:clamp(0.88rem,1.8vw,1rem);
  font-weight:800;
  background:linear-gradient(135deg,var(--coral-pink),var(--purple-sea));
  color:white;
  border-radius:var(--radius-full);
  padding:0.9rem 2rem;
  box-shadow:0 6px 24px rgba(255,142,199,0.4),0 0 0 3px rgba(255,142,199,0.15);
  transition:transform 0.15s,box-shadow 0.15s;
  animation:btnPulse 2.5s ease-in-out infinite;
  white-space:nowrap;
  position:relative;z-index:10;
}
.confetti-btn:hover{transform:scale(1.07);box-shadow:0 8px 32px rgba(255,142,199,0.65);}
@keyframes btnPulse{0%,100%{box-shadow:0 6px 24px rgba(255,142,199,0.4),0 0 0 3px rgba(255,142,199,0.15);}50%{box-shadow:0 6px 32px rgba(38,192,245,0.5),0 0 0 3px rgba(38,192,245,0.2);}}

/* Wave layers */
.wave-layers{position:absolute;bottom:0;left:0;width:100%;z-index:7;}
.wave-layer{position:absolute;bottom:0;left:0;width:100%;line-height:0;}
.wave-layer svg{display:block;width:100%;height:80px;}
.wl1{animation:waveShift 7s ease-in-out infinite alternate;}
.wl2{animation:waveShift 5s ease-in-out infinite alternate-reverse;}
.wl3{bottom:0;}
@keyframes waveShift{from{transform:translateX(-2%);}to{transform:translateX(2%);}}

/* Seaweed */
.seaweed-bg{
  position:absolute;bottom:0;left:0;width:100%;height:60%;
  pointer-events:none;z-index:4;
  display:flex;align-items:flex-end;justify-content:space-around;padding:0 2%;
}
.sw{width:clamp(28px,3vw,44px);flex-shrink:0;transform-origin:bottom center;animation:seaweedSway ease-in-out infinite;}
.sw1{height:clamp(80px,12vw,130px);animation-duration:3.2s;animation-delay:0s;}
.sw2{height:clamp(60px,9vw,100px);animation-duration:4s;animation-delay:0.8s;}
.sw3{height:clamp(90px,14vw,150px);animation-duration:2.8s;animation-delay:1.5s;}
.sw4{height:clamp(70px,11vw,120px);animation-duration:3.6s;animation-delay:0.4s;}
.sw5{height:clamp(80px,12vw,135px);animation-duration:3.4s;animation-delay:2s;}
.sw6{height:clamp(65px,10vw,110px);animation-duration:4.2s;animation-delay:1s;}
@keyframes seaweedSway{0%{transform:rotate(-12deg);}50%{transform:rotate(12deg);}100%{transform:rotate(-12deg);}}

/* Bubble canvas */
.sea-bubbles-canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:3;}

/* ===== Mermaid character section ===== */
.deco-mermaid-wrap{
  display:flex;
  justify-content:center;align-items:center;
  padding:3rem 1rem 2rem;
  background:linear-gradient(180deg,#041525 0%,#0a1f3d 100%);
  position:relative;overflow:hidden;
}
.deco-mermaid-wrap::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(77,217,172,0.08) 0%,transparent 70%);
  pointer-events:none;
}
.deco-mermaid-inner{
  display:flex;flex-direction:column;align-items:center;
  gap:0.8rem;position:relative;z-index:2;
}
.deco-mermaid-speech{
  background:linear-gradient(135deg,rgba(255,142,199,0.18),rgba(77,217,172,0.18));
  border:2px solid rgba(255,142,199,0.45);
  border-radius:2rem;
  padding:0.55rem 1.4rem;
  font-size:clamp(0.9rem,2.2vw,1.05rem);
  font-weight:700;color:#fff;
  position:relative;animation:speechBob 3s ease-in-out infinite;
}
.deco-mermaid-speech::after{
  content:'';position:absolute;
  bottom:-12px;left:50%;transform:translateX(-50%);
  border:6px solid transparent;border-top-color:rgba(255,142,199,0.45);
}
@keyframes speechBob{0%,100%{transform:translateY(0);}50%{transform:translateY(-5px);}}
.deco-mermaid-char{
  animation:merFloat 4s ease-in-out infinite;
  filter:drop-shadow(0 12px 30px rgba(77,217,172,0.5)) drop-shadow(0 0 50px rgba(255,142,199,0.3));
}
.mermaid-png{
  width:clamp(160px,25vw,290px);
  height:auto;display:block;margin:0 auto;
}
@keyframes merFloat{
  0%,100%{transform:translateY(0) rotate(0deg);}
  25%{transform:translateY(-14px) rotate(1.5deg);}
  75%{transform:translateY(-7px) rotate(-1deg);}
}
/* Animated title words */
.deco-mermaid-text-anim{
  display:flex;align-items:center;justify-content:center;
  gap:0.4rem;flex-wrap:wrap;margin-bottom:0.5rem;
}
.dmt-word{
  font-family:var(--font-display);
  font-size:clamp(1.1rem,3vw,1.8rem);
  display:inline-block;opacity:0;
  animation:wordRise 0.6s ease forwards, wordGlow 3s ease-in-out infinite 0.8s;
}
.dmt-word:nth-child(1){animation-delay:0s,0.8s;color:var(--gold);}
.dmt-word:nth-child(2){animation-delay:0.15s,0.95s;color:var(--coral-pink);}
.dmt-word:nth-child(3){animation-delay:0.3s,1.1s;color:var(--aqua);}
.dmt-word:nth-child(4){animation-delay:0.45s,1.25s;color:var(--teal);}
.dmt-word:nth-child(5){animation-delay:0.6s,1.4s;color:var(--gold);}
@keyframes wordRise{0%{opacity:0;transform:translateY(20px) scale(0.8);}100%{opacity:1;transform:translateY(0) scale(1);}}
@keyframes wordGlow{
  0%,100%{text-shadow:0 0 10px currentColor;transform:translateY(0);}
  50%{text-shadow:0 0 25px currentColor,0 0 50px currentColor;transform:translateY(-4px);}
}

/* ===== COUNTDOWN ===== */
.countdown-section{
  background:var(--ocean);
  padding:clamp(3rem,7vw,5rem) clamp(1rem,5vw,3rem) 0;
  position:relative;z-index:4;
}
.countdown-inner{max-width:800px;margin:0 auto;text-align:center;padding-bottom:2rem;}
.countdown-title{font-family:var(--font-display);font-size:clamp(1.3rem,3.2vw,2rem);color:#fff;margin-bottom:1.8rem;text-shadow:0 0 20px rgba(38,192,245,0.4);line-height:1.3;}
.cd-fish{display:inline-block;animation:fishWiggle 2s ease-in-out infinite;}
.cd-fish:last-child{animation-direction:reverse;}
@keyframes fishWiggle{0%,100%{transform:translateX(0);}50%{transform:translateX(5px);}}
.countdown-grid{display:flex;align-items:center;justify-content:center;gap:clamp(0.2rem,1vw,0.6rem);flex-wrap:nowrap;}
.cd-unit{
  background:linear-gradient(135deg,rgba(38,192,245,0.15),rgba(123,104,238,0.15));
  border:2px solid rgba(38,192,245,0.4);
  border-radius:var(--radius-lg);
  padding:clamp(0.7rem,2vw,1.2rem) clamp(0.8rem,2.2vw,1.4rem);
  min-width:clamp(64px,15vw,110px);
  text-align:center;
  animation:unitGlow 3s ease-in-out infinite;
}
.cd-unit:nth-child(3){animation-delay:0.5s;}
.cd-unit:nth-child(5){animation-delay:1s;}
.cd-unit:nth-child(7){animation-delay:1.5s;}
@keyframes unitGlow{0%,100%{border-color:rgba(38,192,245,0.4);}50%{border-color:rgba(255,142,199,0.6);}}
.cd-number{font-family:var(--font-display);font-size:clamp(1.8rem,4.5vw,3.8rem);color:var(--aqua);line-height:1;text-shadow:0 0 20px rgba(38,192,245,0.6);}
.cd-number.flip{animation:cdFlip 0.3s ease;}
@keyframes cdFlip{0%{transform:scaleY(1);}50%{transform:scaleY(0);color:var(--coral-pink);}100%{transform:scaleY(1);}}
.cd-label{font-size:clamp(0.6rem,1.3vw,0.85rem);font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em;margin-top:0.3rem;}
.cd-sep{font-family:var(--font-display);font-size:clamp(1.6rem,3.5vw,3rem);color:var(--teal);animation:sepBlink 1s step-end infinite;padding-bottom:1.5rem;}
@keyframes sepBlink{0%,100%{opacity:1;}50%{opacity:0.2;}}
.countdown-sub{font-size:clamp(0.88rem,2vw,1rem);font-weight:700;color:var(--teal-light);margin-top:1.5rem;}
.seaweed-strip{line-height:0;}
.seaweed-strip svg{width:100%;display:block;}
.sw-blade{transform-box:fill-box;transform-origin:bottom center;animation:bladeSway ease-in-out infinite;}
.sw-coral{transform-box:fill-box;transform-origin:bottom center;animation:coralBob ease-in-out infinite;}
@keyframes bladeSway{0%,100%{transform:rotate(-10deg);}50%{transform:rotate(10deg);}}
@keyframes coralBob{0%,100%{transform:rotate(-6deg) translateY(0);}50%{transform:rotate(6deg) translateY(-2px);}}

/* ===== INVITATION CARD ===== */
.invitation{
  background:linear-gradient(180deg,var(--ocean) 0%,#071d40 100%);
  padding:clamp(3rem,8vw,6rem) clamp(1rem,5vw,3rem);
  position:relative;z-index:4;overflow:hidden;
}
.invitation::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 50%,rgba(77,217,172,0.08) 0%,transparent 60%),
    radial-gradient(ellipse at 80% 30%,rgba(255,142,199,0.08) 0%,transparent 60%);
  pointer-events:none;
}
.invitation-inner{max-width:680px;margin:0 auto;position:relative;}
.inv-bubbles{position:absolute;inset:0;pointer-events:none;overflow:hidden;}
.inv-bub{position:absolute;border-radius:50%;border:2px solid rgba(38,192,245,0.3);animation:invBubRise 8s ease-in-out infinite;}
.ib1{width:60px;height:60px;bottom:-20px;left:5%;animation-delay:0s;}
.ib2{width:40px;height:40px;bottom:-10px;right:8%;animation-delay:2s;}
.ib3{width:80px;height:80px;bottom:-30px;left:40%;animation-delay:4s;}
.ib4{width:30px;height:30px;bottom:-5px;right:35%;animation-delay:6s;}
@keyframes invBubRise{0%,100%{transform:translateY(0) scale(1);opacity:0.4;}50%{transform:translateY(-30px) scale(1.05);opacity:0.7;}}
.invite-card{
  position:relative;
  background:linear-gradient(145deg,rgba(13,47,92,0.95),rgba(7,29,64,0.98));
  border:2px solid rgba(38,192,245,0.5);
  border-radius:var(--radius-xl);
  padding:clamp(1.8rem,5vw,3.5rem);
  text-align:center;
  box-shadow:0 20px 60px rgba(4,21,37,0.6),0 0 60px rgba(38,192,245,0.15);
  overflow:hidden;
  animation:cardBreath 5s ease-in-out infinite;
}
@keyframes cardBreath{0%,100%{box-shadow:0 20px 60px rgba(4,21,37,0.6),0 0 60px rgba(38,192,245,0.15);}50%{box-shadow:0 20px 60px rgba(4,21,37,0.6),0 0 80px rgba(255,142,199,0.2);}}
.card-shimmer{
  position:absolute;top:-50%;left:-60%;
  width:40%;height:200%;
  background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,0.06) 50%,transparent 60%);
  animation:cardShimmer 5s ease-in-out infinite;pointer-events:none;
}
@keyframes cardShimmer{0%{left:-60%;}100%{left:120%;}}
.invite-top-deco{font-size:clamp(1.2rem,3vw,1.8rem);letter-spacing:0.5rem;margin-bottom:1rem;display:flex;justify-content:center;gap:0.5rem;animation:decoFloat 3s ease-in-out infinite;}
@keyframes decoFloat{0%,100%{transform:translateY(0);}50%{transform:translateY(-5px);}}
.invite-label{font-size:clamp(0.72rem,1.4vw,0.85rem);font-weight:700;color:var(--teal-light);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:0.7rem;}
.invite-title{
  font-family:var(--font-display);
  font-size:clamp(1.8rem,5vw,3.2rem);
  color:white;
  text-shadow:0 0 30px rgba(38,192,245,0.5);
  margin-bottom:1rem;line-height:1.2;
  animation:titlePop 4s ease-in-out infinite;
}
@keyframes titlePop{0%,100%{transform:scale(1);}50%{transform:scale(1.02);}}
.invite-mermaid-hr{width:min(300px,80%);margin:0 auto 1.5rem;}
.invite-photo-row{display:flex;justify-content:center;margin-bottom:1rem;}
.invite-photo-frame{
  width:clamp(120px,22vw,170px);
  aspect-ratio:1;border-radius:50%;overflow:hidden;
  border:4px solid transparent;
  background:linear-gradient(var(--ocean-mid),var(--ocean-mid)) padding-box,
             linear-gradient(135deg,var(--teal),var(--coral-pink),var(--aqua)) border-box;
  box-shadow:0 8px 32px rgba(4,21,37,0.5),0 0 40px rgba(38,192,245,0.3);
  animation:photoSpin 8s ease-in-out infinite;cursor:pointer;
}
@keyframes photoSpin{0%,100%{box-shadow:0 8px 32px rgba(4,21,37,0.5),0 0 40px rgba(38,192,245,0.3);}50%{box-shadow:0 8px 32px rgba(4,21,37,0.5),0 0 50px rgba(255,142,199,0.45);}}
.invite-photo-frame img{width:100%;height:100%;object-fit:cover;object-position:top center;cursor:pointer;}
.invite-name{font-family:var(--font-display);font-size:clamp(1.8rem,4.5vw,3rem);color:var(--coral-pink);text-shadow:0 0 25px rgba(255,142,199,0.5);margin-bottom:0.2rem;}
.invite-turning{font-size:clamp(0.95rem,2.2vw,1.2rem);font-weight:700;color:var(--text-muted);margin-bottom:1.5rem;}
.invite-4{font-family:var(--font-display);color:var(--gold);font-size:1.5em;text-shadow:0 0 15px rgba(255,215,0,0.6);}
.invite-details{
  display:grid;grid-template-columns:1fr 1fr;gap:0.8rem;
  margin-bottom:1.5rem;text-align:left;
}
.invite-detail{
  display:flex;align-items:flex-start;gap:0.55rem;
  background:rgba(38,192,245,0.08);
  border:1px solid rgba(38,192,245,0.2);
  border-radius:var(--radius-lg);
  padding:0.7rem 0.85rem;
}
.id-icon{font-size:1.2rem;flex-shrink:0;margin-top:1px;}
.invite-detail div{display:flex;flex-direction:column;gap:0.12rem;}
.invite-detail strong{font-size:0.75rem;font-weight:800;color:var(--teal-light);text-transform:uppercase;letter-spacing:0.05em;}
.invite-detail span{font-size:clamp(0.75rem,1.4vw,0.85rem);font-weight:600;color:var(--text-light);}
.invite-message{
  font-size:clamp(0.88rem,1.8vw,1rem);
  font-weight:600;color:var(--text-muted);
  line-height:1.7;margin-bottom:1.2rem;font-style:italic;
}
.invite-bottom-deco{font-size:clamp(1.1rem,2.2vw,1.5rem);letter-spacing:0.5rem;display:flex;justify-content:center;gap:0.5rem;animation:decoFloat 3s ease-in-out infinite reverse;}

/* ===== MILESTONES ===== */
.ocean-floor{background:var(--ocean);padding:clamp(3rem,7vw,6rem) clamp(1rem,5vw,3rem);position:relative;z-index:4;}
.section-inner{max-width:1000px;margin:0 auto;text-align:center;}
.section-title{font-family:var(--font-display);font-size:clamp(1.4rem,3.8vw,2.5rem);color:#fff;margin-bottom:0.5rem;line-height:1.2;text-shadow:0 0 20px rgba(38,192,245,0.4);}
.highlight-aqua{color:var(--aqua);}
.highlight-pink{color:var(--coral-pink);}
.section-sub{font-size:clamp(0.85rem,1.7vw,0.98rem);font-weight:600;color:var(--text-muted);margin-bottom:2.5rem;}
.milestone-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;}
.milestone-card{border-radius:var(--radius-lg);padding:2rem 1.5rem;text-align:center;transition:transform 0.3s,box-shadow 0.3s;border:1px solid rgba(255,255,255,0.1);}
.milestone-card:hover{transform:translateY(-10px);box-shadow:0 20px 40px rgba(0,0,0,0.4);}
.mc1{background:linear-gradient(135deg,rgba(77,217,172,0.25),rgba(38,192,245,0.15));border-color:rgba(77,217,172,0.3);}
.mc2{background:linear-gradient(135deg,rgba(38,192,245,0.25),rgba(123,104,238,0.15));border-color:rgba(38,192,245,0.3);}
.mc3{background:linear-gradient(135deg,rgba(123,104,238,0.25),rgba(255,142,199,0.15));border-color:rgba(123,104,238,0.3);}
.mc4{background:linear-gradient(135deg,rgba(255,142,199,0.25),rgba(255,215,0,0.15));border-color:rgba(255,142,199,0.3);}
.card-icon{font-size:clamp(2.2rem,4.5vw,3rem);margin-bottom:0.8rem;display:block;animation:iconBob 2.5s ease-in-out infinite;}
.milestone-card:nth-child(2) .card-icon{animation-delay:0.5s;}
.milestone-card:nth-child(3) .card-icon{animation-delay:1s;}
.milestone-card:nth-child(4) .card-icon{animation-delay:1.5s;}
@keyframes iconBob{0%,100%{transform:translateY(0);}50%{transform:translateY(-8px);}}
.milestone-card h3{font-family:var(--font-display);font-size:clamp(0.9rem,1.8vw,1.15rem);color:#fff;margin-bottom:0.5rem;}
.milestone-card p{font-size:clamp(0.78rem,1.4vw,0.85rem);color:var(--text-muted);line-height:1.55;}

/* ===== GALLERY ===== */
.gallery{background:linear-gradient(180deg,var(--ocean) 0%,var(--ocean-mid) 100%);padding:clamp(3rem,7vw,6rem) clamp(1rem,4vw,2.5rem);position:relative;z-index:4;}
.gallery-header{text-align:center;margin-bottom:2.5rem;}
.gallery-featured{display:grid;grid-template-columns:2fr 1fr 1.5fr;grid-template-rows:360px;gap:1rem;width:100%;max-width:1100px;margin:0 auto 1.2rem;}
.feat-col{display:grid;grid-template-rows:1fr 1fr;gap:1rem;}
.feat-photo{overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);position:relative;border:2px solid rgba(38,192,245,0.25);cursor:pointer;}
.feat-photo::after{content:'';position:absolute;inset:0;border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(38,192,245,0.05) 0%,transparent 60%);pointer-events:none;}
.feat-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 15%;transition:transform 0.5s;cursor:pointer;}
.feat-photo:hover img{transform:scale(1.06);}
.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(clamp(130px,20vw,175px),1fr));gap:0.75rem;width:100%;max-width:1100px;margin:0 auto;}
.photo-item{aspect-ratio:1;overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);position:relative;cursor:pointer;border:1px solid rgba(38,192,245,0.18);}
.photo-item::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent 50%,rgba(123,104,238,0.3) 100%);opacity:0;transition:opacity 0.3s;border-radius:var(--radius-lg);}
.photo-item:hover::after{opacity:1;}
.photo-item img{width:100%;height:100%;object-fit:cover;object-position:50% 12%;transition:transform 0.4s;cursor:pointer;}
.photo-item:hover img{transform:scale(1.09);}

/* ===== WISH ===== */
.wish-section{background:linear-gradient(135deg,#061830 0%,#0a2855 50%,#061830 100%);padding:clamp(3rem,8vw,6rem) clamp(1rem,5vw,3rem);position:relative;z-index:4;overflow:hidden;}
.wish-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(38,192,245,0.08) 0%,transparent 70%);pointer-events:none;}
.wish-inner{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;}
.wish-deco{font-size:clamp(1.1rem,2.5vw,1.6rem);margin-bottom:1rem;letter-spacing:0.5rem;}
.wish-title{font-family:var(--font-display);font-size:clamp(1.3rem,3.5vw,2.2rem);color:var(--aqua);margin-bottom:1.5rem;text-shadow:0 0 20px rgba(38,192,245,0.4);line-height:1.2;}
.wish-text p{font-size:clamp(0.92rem,1.8vw,1.05rem);font-weight:600;color:var(--text-light);line-height:2.1;font-style:italic;}
.wish-sign{margin-top:0.8rem;color:var(--coral-pink)!important;font-style:normal!important;font-weight:800!important;}
.wish-photo{position:relative;cursor:pointer;}
/* Hat photo fix — use center position so face + hat both visible */
.wish-photo img{
  width:100%;
  max-height:360px;
  object-fit:cover;
  object-position:center 20%;
  border-radius:var(--radius-xl);
  border:4px solid rgba(38,192,245,0.45);
  box-shadow:var(--shadow-photo),0 0 30px rgba(38,192,245,0.25);
  transform:rotate(2deg);
  transition:transform 0.4s;
}
.wish-photo img:hover{transform:rotate(-1deg) scale(1.03);}
.mermaid-tail-deco{margin-top:-8px;opacity:0.85;}
.mermaid-tail-deco svg{width:100%;}

/* ===== FOOTER ===== */
.footer{background:var(--deep-ocean);padding:0 1rem clamp(2.5rem,6vw,5rem);text-align:center;position:relative;z-index:4;}
.footer-wave{line-height:0;margin-bottom:2rem;}
.footer-wave svg{display:block;width:100%;height:60px;}
.footer-inner{max-width:600px;margin:0 auto;}
.footer-mermaid{display:flex;justify-content:center;margin-bottom:1.2rem;animation:mermaidFloat 4s ease-in-out infinite;}
@keyframes mermaidFloat{0%,100%{transform:translateY(0) rotate(-2deg);}50%{transform:translateY(-12px) rotate(2deg);}}
.footer-title{font-family:var(--font-display);font-size:clamp(1.4rem,3.8vw,2.5rem);color:#fff;margin-bottom:0.7rem;line-height:1.25;text-shadow:0 0 20px rgba(38,192,245,0.5);}
.footer-msg{font-size:clamp(0.88rem,1.8vw,1rem);font-weight:700;color:var(--teal-light);margin-bottom:1.2rem;}
.footer-icons{font-size:clamp(1.1rem,2.5vw,1.6rem);letter-spacing:0.35rem;animation:iconsWave 2s ease-in-out infinite;}
@keyframes iconsWave{0%,100%{transform:scale(1);}50%{transform:scale(1.08);}}

/* ===== LIGHTBOX ===== */
.lightbox{display:none;position:fixed;inset:0;background:rgba(4,21,37,0.95);z-index:10000;align-items:center;justify-content:center;padding:1rem;}
.lightbox.open{display:flex;}
.lightbox img{max-width:min(90vw,860px);max-height:88vh;object-fit:contain;border-radius:var(--radius-lg);border:3px solid var(--aqua);box-shadow:0 20px 60px rgba(0,0,0,0.7),0 0 40px rgba(38,192,245,0.3);animation:lbIn 0.3s ease;}
@keyframes lbIn{from{transform:scale(0.8);opacity:0;}to{transform:scale(1);opacity:1;}}
.lightbox-close{position:fixed;top:1rem;right:1.5rem;font-size:2.5rem;color:var(--aqua);cursor:pointer;z-index:10001;transition:transform 0.2s,color 0.2s;}
.lightbox-close:hover{transform:scale(1.2) rotate(10deg);color:var(--coral-pink);}
.lb-prev,.lb-next{
  position:fixed;top:50%;transform:translateY(-50%);
  font-size:3rem;color:var(--aqua);cursor:pointer;z-index:10001;
  background:rgba(4,21,37,0.7);border:2px solid var(--aqua);
  border-radius:50%;width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  transition:all 0.2s;
}
.lb-prev{left:0.75rem;}
.lb-next{right:0.75rem;}
.lb-prev:hover,.lb-next:hover{background:var(--aqua);color:var(--ocean);}

/* ================================================================
   RESPONSIVE — TABLET (≤900px)
   ================================================================ */
@media(max-width:900px){
  /* feat-medium hidden: 2-col grid, feat-col spans remaining column */
  .gallery-featured{grid-template-columns:1fr 1fr;grid-template-rows:auto;}
  .feat-large{grid-column:1/-1;height:260px;}
  /* feat-col: span both columns as 2-column row of small photos */
  .feat-col{grid-column:1/-1;grid-template-rows:none;grid-template-columns:1fr 1fr;height:200px;}
  .feat-medium{display:none;}
}

/* ================================================================
   RESPONSIVE — MOBILE (≤768px)
   ================================================================ */
@media(max-width:768px){
  /* Stack hero vertically: photo on top, text below */
  .hero{
    padding:1.5rem 1rem 100px;
    justify-content:flex-start;
  }
  .hero-content{
    flex-direction:column;
    gap:1.2rem;
    align-items:center;
  }
  /* Slideshow smaller on mobile */
  .slideshow-wrap{
    width:min(240px,70vw);
    flex-shrink:0;
  }
  /* Hero text: full width, centered */
  .hero-text{
    width:100%;
    max-width:100%;
    padding-top:0.5rem;
    align-items:center;
  }
  /* Shrink hero title to fit on one line */
  .hb-line{font-size:clamp(1.5rem,6.5vw,2.4rem);}
  .name-yashvi{font-size:clamp(2rem,8vw,3.2rem);}
  /* Button: always full visible */
  .confetti-btn{
    font-size:0.95rem;
    padding:0.85rem 1.6rem;
    margin-top:0.4rem;
    width:auto;
    max-width:85vw;
  }
  .invite-details{grid-template-columns:1fr;}
  .wish-inner{grid-template-columns:1fr;gap:2rem;}
  .wish-title,.wish-deco{text-align:center;}
  .wish-text{text-align:center;}
  .lb-prev{left:0.25rem;}
  .lb-next{right:0.25rem;}
}

/* ================================================================
   RESPONSIVE — SMALL MOBILE (≤480px)
   ================================================================ */
@media(max-width:480px){
  .slideshow-wrap{width:min(220px,65vw);}
  .hb-line{font-size:clamp(1.35rem,6vw,1.9rem);}
  .name-yashvi{font-size:clamp(1.8rem,7.5vw,2.6rem);}
  .confetti-btn{font-size:0.88rem;padding:0.8rem 1.3rem;}
  .photo-grid{grid-template-columns:repeat(2,1fr);}
  .milestone-cards{grid-template-columns:1fr 1fr;gap:0.9rem;}
  .gallery-featured{grid-template-columns:1fr;}
  .feat-large{height:220px;}
  .feat-col{grid-column:1/-1;grid-template-columns:1fr 1fr;height:180px;}
  .slide-arrow{width:32px;height:32px;font-size:1.2rem;}
  .slide-arrow.prev{left:4px;}
  .slide-arrow.next{right:4px;}
  .countdown-grid{gap:0.15rem;}
  .cd-unit{padding:0.6rem 0.5rem;min-width:clamp(55px,19vw,78px);}
  .cd-sep{font-size:1.4rem;padding-bottom:1.1rem;}
  .invite-details{gap:0.5rem;}
  .seaweed-bg{display:none;}
  /* Reduce floating decorations on small screens for perf */
  .jellyfish-layer,.sea-floats{display:none;}
}

/* ================================================================
   PERFORMANCE — reduce motion on slow connections / user pref
   ================================================================ */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;}
}