/* ===================================
   TYANA ZİRAAT - GLOBAL STYLES
   Modern Tarım Web Sitesi
   =================================== */

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors - Green Palette */
    --primary-darkest: #1B5E20;
    --primary-dark: #2E7D32;
    --primary: #43A047;
    --primary-light: #66BB6A;
    --primary-lighter: #81C784;
    --primary-lightest: #C8E6C9;

    /* Accent Colors */
    --accent-gold: #FFB300;
    --accent-earth: #8D6E63;

    /* Neutral Colors */
    --dark: #1a1a2e;
    --dark-light: #2d2d44;
    --gray-dark: #4a4a5a;
    --gray: #6b6b7b;
    --gray-light: #9999a9;
    --gray-lighter: #e0e0e0;
    --light: #f5f5f7;
    --white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
    --shadow-green: 0 10px 40px rgba(46, 125, 50, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-green);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 45px rgba(46, 125, 50, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-dark);
}

.btn-white {
    background: var(--white);
    color: var(--primary-dark);
}

.btn-white:hover {
    background: var(--light);
    transform: translateY(-3px);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
}

/* ===== SECTION HEADERS ===== */
.section-header {
    margin-bottom: 60px;
}

.section-header.center {
    text-align: center;
}

.section-header.light h2,
.section-header.light .section-tag {
    color: var(--white);
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 15px;
    position: relative;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: -40px;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.section-header.center .section-tag::before {
    display: none;
}

.section-header h2 span {
    color: var(--primary);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 20px auto 0;
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-fadeInUp {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

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

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

/* ===== PRELOADER ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1B5E20 0%, #2E7D32 50%, #43A047 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.preloader-logo {
    width: 120px;
    height: auto;
    animation: preloaderPulse 1.5s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

@keyframes preloaderPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Preloader altında loading spinner */
.preloader-content::after {
    content: '';
    display: block;
    width: 40px;
    height: 40px;
    margin: 20px auto 0;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== SCROLL TO TOP BUTTON ===== */
#scrollTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-green);
    z-index: 1000;
}

#scrollTop.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scrollTop:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(46, 125, 50, 0.4);
}