/* ============================
   APP.CSS — Premium iOS Portfolio
   Full Interactive, Animations,
   3 Themes, Game UI, Charts
   ============================ */

/* --- VARIABLES (Dark default) --- */
:root, [data-theme="dark"] {
    --bg: #000000;
    --bg2: #1C1C1E;
    --bg3: #2C2C2E;
    --bg4: #3A3A3C;
    --glass: rgba(28,28,30,0.78);
    --border: rgba(255,255,255,0.08);
    --text: #FFFFFF;
    --text2: #AEAEB2;
    --text3: #636366;
    --primary: #0A84FF;
    --primary2: #5AC8FA;
    --green: #30D158;
    --orange: #FF9F0A;
    --red: #FF453A;
    --purple: #BF5AF2;
    --yellow: #FFD60A;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.5);
    --font: 'Inter', -apple-system, system-ui, sans-serif;
    --mono: 'JetBrains Mono', monospace;
    --tab-h: 78px;
    --ring-color: var(--primary);
}

[data-theme="light"] {
    --bg: #F2F2F7;
    --bg2: #FFFFFF;
    --bg3: #E5E5EA;
    --bg4: #D1D1D6;
    --glass: rgba(255,255,255,0.85);
    --border: rgba(0,0,0,0.05);
    --text: #000000;
    --text2: #3C3C43;
    --text3: #8E8E93;
    --primary: #007AFF;
    --primary2: #5856D6;
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
}

[data-theme="midnight"] {
    --bg: #0B1A2E;
    --bg2: #112240;
    --bg3: #1A3356;
    --bg4: #234670;
    --glass: rgba(11,26,46,0.82);
    --border: rgba(100,210,255,0.1);
    --text: #E6F1FF;
    --text2: #8BA4C7;
    --text3: #4A6A8F;
    --primary: #64DFDF;
    --primary2: #48BFE3;
    --green: #80ED99;
    --purple: #C77DFF;
    --shadow: 0 4px 24px rgba(0,0,0,0.6);
    --ring-color: #64DFDF;
}

/* --- RESET --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:54px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;padding-bottom:calc(var(--tab-h) + env(safe-area-inset-bottom,0px));transition:background .35s ease,color .35s ease}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer}

/* --- INTRO OVERLAY (CSS animated) --- */
.intro-overlay{position:fixed;inset:0;z-index:9999;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;transition:opacity .5s ease,transform .5s ease}
.intro-overlay.dismiss{opacity:0;transform:scale(1.04);pointer-events:none}
.intro-icon{width:80px;height:80px;border-radius:22px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff;animation:introIconPop .6s cubic-bezier(.175,.885,.32,1.275) forwards,introIconFloat 2s ease-in-out .6s infinite}
@keyframes introIconPop{from{transform:scale(0) rotate(-20deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}
@keyframes introIconFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.intro-name{font-size:20px;font-weight:800;color:var(--text);letter-spacing:-.5px;opacity:0;animation:introFade .5s ease .4s forwards}
.intro-text{font-size:12px;color:var(--text3);opacity:0;animation:introFade .5s ease .7s forwards}
@keyframes introFade{to{opacity:1}}
.intro-bar{width:120px;height:3px;background:var(--bg3);border-radius:2px;overflow:hidden;margin-top:8px;opacity:0;animation:introFade .3s ease .9s forwards}
.intro-fill{height:100%;width:0;background:var(--primary);border-radius:2px;animation:introLoad 1.8s ease 1s forwards}
@keyframes introLoad{to{width:100%}}

/* --- BG EFFECTS --- */
.bg-gradient{position:fixed;inset:0;z-index:-2;pointer-events:none;transition:background .5s}
[data-theme="dark"] .bg-gradient{background:radial-gradient(ellipse at 25% 15%,rgba(10,132,255,.07),transparent 50%),radial-gradient(ellipse at 75% 85%,rgba(191,90,242,.04),transparent 50%)}
[data-theme="light"] .bg-gradient{background:radial-gradient(ellipse at 30% 20%,rgba(0,122,255,.04),transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(88,86,214,.03),transparent 50%)}
[data-theme="midnight"] .bg-gradient{background:radial-gradient(ellipse at 20% 30%,rgba(100,223,223,.06),transparent 50%),radial-gradient(ellipse at 80% 70%,rgba(199,125,255,.04),transparent 50%)}

/* --- STATUS BAR --- */
.statusbar{position:fixed;top:0;left:0;right:0;z-index:900;display:flex;align-items:center;justify-content:space-between;padding:11px 20px;font-size:12px;font-weight:600;background:var(--glass);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border)}
.statusbar-time{color:var(--text2)}
.statusbar-title{color:var(--text);font-weight:700;font-size:13px}
.statusbar-icons{display:flex;gap:6px;color:var(--text2);font-size:11px}

/* --- CONTAINER --- */
.container{max-width:580px;margin:0 auto;padding:54px 18px 30px}

/* --- SECTION --- */
.section{padding:28px 0}
.section-title{font-size:22px;font-weight:800;letter-spacing:-.4px;margin-bottom:18px}

/* --- CARD --- */
.card{background:var(--glass);backdrop-filter:saturate(150%) blur(16px);-webkit-backdrop-filter:saturate(150%) blur(16px);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:14px;box-shadow:var(--shadow);transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s ease,background .35s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.35)}
.card:active{transform:scale(.97);transition:transform .08s}
.card-subtitle{font-size:13px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:7px;color:var(--text)}
.card-subtitle i{color:var(--primary);font-size:12px}

/* --- HERO --- */
.hero{text-align:center;padding-top:16px}
.hero-avatar{width:100px;height:100px;margin:0 auto 14px;position:relative}
.hero-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%;border:3px solid var(--border);transition:transform .3s}
.hero-avatar:hover img{transform:scale(1.05)}
.hero-avatar::before{content:'';position:absolute;inset:-5px;border-radius:50%;border:2px solid var(--ring-color);opacity:.5;animation:ringBreathe 3s ease-in-out infinite}
@keyframes ringBreathe{0%,100%{transform:scale(1);opacity:.4}50%{transform:scale(1.06);opacity:.9}}
.avatar-online{position:absolute;bottom:3px;right:3px;width:15px;height:15px;background:var(--green);border-radius:50%;border:3px solid var(--bg);box-shadow:0 0 8px var(--green);animation:onlinePulse 2s infinite}
@keyframes onlinePulse{0%,100%{box-shadow:0 0 4px var(--green)}50%{box-shadow:0 0 12px var(--green)}}
.hero-name{font-size:26px;font-weight:900;letter-spacing:-.8px}
.hero-role{font-size:13px;color:var(--text2);margin-top:3px}
.hero-badges{display:flex;gap:7px;justify-content:center;margin-top:10px}
.hero-stats{display:flex;gap:9px;justify-content:center;margin-top:18px}
.stat{flex:1;max-width:90px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:11px 5px;text-align:center;transition:all .2s;cursor:default}
.stat:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px rgba(10,132,255,.15)}
.stat:active{transform:scale(.93)}
.stat strong{display:block;font-size:17px;font-weight:800;color:var(--primary);font-family:var(--mono)}
.stat span{font-size:9px;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.hero-actions{display:flex;gap:9px;margin-top:18px;max-width:300px;margin-left:auto;margin-right:auto}

/* --- BUTTONS --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;border:none;transition:all .15s;flex:1;position:relative;overflow:hidden;-webkit-tap-highlight-color:transparent}
.btn:active{transform:scale(.93);transition:transform .06s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{box-shadow:0 6px 20px rgba(10,132,255,.35);transform:translateY(-1px)}
.btn-ghost{background:var(--bg3);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--bg4);transform:translateY(-1px)}
.btn-sm{padding:8px 13px;font-size:11px;flex:0 1 auto}
.btn-full{width:100%}

/* --- CHIPS & TAGS --- */
.chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:14px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;transition:transform .15s}
.chip:hover{transform:scale(1.06)}
.chip-blue{background:rgba(10,132,255,.12);color:var(--primary)}
.chip-green{background:rgba(48,209,88,.12);color:var(--green)}
.chip-purple{background:rgba(191,90,242,.12);color:var(--purple)}
.tag{padding:5px 11px;border-radius:8px;font-size:11px;font-weight:500;background:var(--bg3);color:var(--text2);border:1px solid var(--border);transition:all .15s;cursor:default;display:inline-block}
.tag:hover{background:rgba(10,132,255,.08);color:var(--primary);border-color:rgba(10,132,255,.2);transform:translateY(-1px)}
.chip-grid{display:flex;flex-wrap:wrap;gap:7px}

/* --- INFO GRID --- */
.info-grid{display:grid;gap:12px;margin-bottom:14px}
.info-row{display:flex;align-items:center;gap:11px}
.info-row i{width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:rgba(10,132,255,.1);color:var(--primary);border-radius:8px;font-size:12px;flex-shrink:0}
.info-row div{display:flex;flex-direction:column}
.info-row small{font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.info-row span{font-size:12px;font-weight:500;color:var(--text)}
.bio{font-size:12px;color:var(--text2);line-height:1.7;border-top:1px solid var(--border);padding-top:12px}

/* --- PROJECT CARD --- */
.project-card{border-left:3px solid var(--green)}
.project-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.project-icon{width:40px;height:40px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--green),#34C759);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;animation:iconBob 3s ease-in-out infinite}
@keyframes iconBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}
.project-name{font-size:16px;font-weight:700;margin-bottom:5px}
.project-desc{font-size:12px;color:var(--text2);line-height:1.5;margin-bottom:10px}
.project-tech{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:12px}
.project-actions{display:flex;gap:7px}

/* --- CIRCULAR SKILL CHARTS (with language icons) --- */
.charts-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.chart-item{text-align:center;padding:14px 8px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all .2s}
.chart-item:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 4px 12px rgba(10,132,255,.1)}
.chart-icon-wrap{position:relative;width:80px;height:80px;margin:0 auto 8px}
.chart-svg{width:100%;height:100%;transform:rotate(-90deg)}
.chart-bg{fill:none;stroke:var(--bg4);stroke-width:6}
.chart-ring{fill:none;stroke:var(--ring-color);stroke-width:6;stroke-linecap:round;stroke-dasharray:251.3;stroke-dashoffset:251.3;transition:stroke-dashoffset 1.5s cubic-bezier(.4,0,.2,1)}
.chart-lang-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:22px;color:var(--primary);opacity:.85}
.chart-num{font-size:14px;font-weight:800;color:var(--primary);font-family:var(--mono)}
.chart-label{font-size:10px;color:var(--text2);margin-top:2px;font-weight:500}

/* --- CONTACT FORM --- */
.contact-form{display:flex;flex-direction:column;gap:12px}
.contact-form.shake{animation:shakeAnim .4s ease}
@keyframes shakeAnim{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.field label{display:block;font-size:10px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.field input,.field textarea{width:100%;padding:10px 13px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg3);color:var(--text);font-size:13px;font-family:var(--font);outline:none;transition:all .2s}
.field input:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(10,132,255,.1);transform:translateY(-1px)}
.field textarea{resize:vertical;min-height:70px}

/* --- SOCIAL ROW --- */
.social-row{display:flex;justify-content:center;gap:10px;margin-top:14px}
.social-btn{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--glass);border:1px solid var(--border);color:var(--primary);font-size:17px;transition:all .2s cubic-bezier(.175,.885,.32,1.275);position:relative;overflow:hidden}
.social-btn:hover{background:rgba(10,132,255,.1);transform:translateY(-3px) scale(1.08);box-shadow:0 6px 16px rgba(10,132,255,.15)}
.social-btn:active{transform:scale(.82);transition:transform .06s}

/* --- TAB BAR --- */
.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:900;display:flex;align-items:center;justify-content:space-around;height:var(--tab-h);padding-bottom:env(safe-area-inset-bottom,0px);background:var(--glass);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:1px solid var(--border)}
.tab{display:flex;flex-direction:column;align-items:center;gap:2px;padding:7px 10px;text-decoration:none;-webkit-tap-highlight-color:transparent;transition:all .15s;position:relative;overflow:hidden}
.tab i{font-size:18px;color:var(--text3);transition:all .2s}
.tab span{font-size:9px;font-weight:600;color:var(--text3);transition:color .2s}
.tab.active i{color:var(--primary);transform:scale(1.18)}
.tab.active span{color:var(--primary)}
.tab::after{content:'';position:absolute;bottom:4px;left:50%;width:0;height:3px;background:var(--primary);border-radius:2px;transform:translateX(-50%);transition:width .25s ease}
.tab.active::after{width:18px}
.tab:active{transform:scale(.82);transition:transform .06s}

/* --- THEME TOGGLE --- */
.theme-toggle{position:fixed;top:48px;right:14px;z-index:950;display:flex;gap:3px;background:var(--glass);backdrop-filter:saturate(150%) blur(16px);-webkit-backdrop-filter:saturate(150%) blur(16px);border:1px solid var(--border);border-radius:20px;padding:3px;animation:fadeSlideIn .5s ease .3s backwards}
@keyframes fadeSlideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.theme-btn{width:28px;height:28px;border-radius:50%;border:none;background:transparent;color:var(--text3);font-size:11px;display:flex;align-items:center;justify-content:center;transition:all .2s}
.theme-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 10px rgba(10,132,255,.35)}
.theme-btn:active{transform:scale(.8)}

/* --- ANIMATIONS --- */
[data-anim]{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s cubic-bezier(.4,0,.2,1)}
[data-anim].visible{opacity:1;transform:translateY(0)}

/* Stagger children */
.card:nth-child(1){transition-delay:.05s}
.card:nth-child(2){transition-delay:.1s}
.card:nth-child(3){transition-delay:.15s}

/* --- RIPPLE --- */
.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.12);transform:scale(0);animation:rippleGrow .45s ease-out forwards;pointer-events:none}
[data-theme="light"] .ripple{background:rgba(0,0,0,.05)}
@keyframes rippleGrow{to{transform:scale(1);opacity:0}}

/* --- TOAST --- */
.toast{position:fixed;top:56px;left:50%;transform:translateX(-50%) translateY(-16px);padding:9px 18px;border-radius:12px;font-size:12px;font-weight:600;z-index:9999;opacity:0;transition:all .3s cubic-bezier(.175,.885,.32,1.275);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;align-items:center;gap:7px;white-space:nowrap;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast-success{background:rgba(48,209,88,.92);color:#fff}
.toast-error{background:rgba(255,69,58,.92);color:#fff}
.toast-info{background:rgba(10,132,255,.92);color:#fff}

/* --- BODY READY STATE --- */
body:not(.ready) .container{opacity:0}
body.ready .container{animation:pageIn .5s ease forwards}
@keyframes pageIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* --- MUTED NOTE --- */
.muted-note{text-align:center;font-size:11px;color:var(--text3);margin-top:10px;font-style:italic;opacity:.6}

/* --- RESPONSIVE: TABLET --- */
@media(min-width:600px){
    .container{max-width:660px;padding:62px 26px 36px}
    .hero-name{font-size:32px}
    .info-grid{grid-template-columns:1fr 1fr}
    .charts-grid{grid-template-columns:repeat(4,1fr)}
    .game-area{height:220px}
}

/* --- RESPONSIVE: DESKTOP --- */
@media(min-width:1024px){
    :root,[data-theme="dark"],[data-theme="light"],[data-theme="midnight"]{--tab-h:0px}
    body{padding-bottom:0}
    .container{max-width:740px;padding:76px 36px 50px}
    .tabbar{top:0;bottom:auto;height:54px;justify-content:center;gap:4px;border-top:none;border-bottom:1px solid var(--border);padding-bottom:0}
    .tab{flex-direction:row;gap:5px;padding:7px 14px}
    .tab i{font-size:14px}
    .tab span{font-size:12px}
    .tab::after{bottom:auto;top:4px}
    .statusbar{display:none}
    .theme-toggle{top:11px;right:18px}
    .hero-name{font-size:38px}
    .game-area{height:240px}
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:2px}

/* --- REDUCED MOTION --- */
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0s!important;transition-duration:0s!important}}

/* --- A11Y --- */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(10,132,255,.25);color:var(--text)}