/* Animations & Micro-interactions */

/* ===== Card Hover Effects ===== */
.plan-card,
.top-plan {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.plan-card:hover,
.top-plan:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
}

/* ===== Heart Animation ===== */
.like-btn {
    position: relative;
    cursor: pointer;
    user-select: none;
}

.like-btn i {
    transition: transform 0.2s ease, color 0.2s ease;
}

.like-btn:hover i {
    transform: scale(1.2);
}

.like-btn.liked i {
    animation: heartBeat 0.6s ease;
    color: #ef4444;
}

@keyframes heartBeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.3);
    }
    50% {
        transform: scale(0.9);
    }
    75% {
        transform: scale(1.15);
    }
}

/* ===== Smooth Scroll ===== */
html {
    scroll-behavior: smooth;
}

/* ===== Button Ripple Effect ===== */
.generate-btn,
.btn {
    position: relative;
    overflow: hidden;
}

.generate-btn::after,
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.generate-btn:active::after,
.btn:active::after {
    width: 300px;
    height: 300px;
}

/* ===== Icon Animations ===== */
.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.fa-fire {
    animation: flicker 2s ease-in-out infinite alternate;
}

@keyframes flicker {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

/* ===== Loading Dots ===== */
.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

/* ===== Fade In Up ===== */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Scale In ===== */
.scale-in {
    animation: scaleIn 0.4s ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== Pulse Glow ===== */
@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(6, 182, 212, 0);
    }
}

.pulse-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

/* ===== Slide In Left ===== */
.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Bounce ===== */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.bounce {
    animation: bounce 1s ease-in-out;
}

/* ===== Confetti (for success) ===== */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #06b6d4;
    top: -10px;
    animation: confettiFall 3s ease-out forwards;
}

@keyframes confettiFall {
    to {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ===== Tooltip ===== */
.tooltip {
    position: relative;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: #1e293b;
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.tooltip:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

/* ===== Shimmer Loading ===== */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.shimmer {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}